[力] 切口沖擊強度
The results showed that with increasing content of TPU, elongation at break and notched impact strength of the blends increased.
拉伸強度和斷裂伸長率均隨辛醛含量的增加而降低。
The viscosity of modified PET was increased with lower crystallinity, smaller size of crystal and improvement of notched impact strength.
改性PET的結晶度降低，晶粒尺寸減小，缺口沖擊強度提高。
With increasing content of the fillers, the notched impact strength and the tensile strength of PVC-matrix composites improved simultaneously.
隨着複合粒子用量的增加，複合材料的強度和韌性同時提高，複合粒子高含量時，複合材料的拉伸強度稍有下降。
The relationship between fracture morphology and notched impact strength of PC/ ABS blends has been stu***d in various raw materials and PC/ABS ratios.
研究了不同原料和配比的PC/ABS共混合金沖擊破壞斷面形态和缺口沖擊強度之間的關系。
The results showed different blending methods had little effects on tensile strength of the blends, but obvious effects on notched impact strength and morphology.
結果發現，共混方式對共混體系拉伸強度影響不大，但對沖擊強度和斷面形态影響較大。
When TAS2A is applied in PP blending system, the products of which have outstanding notched impact strength and flexural strength, the lubricity is superior to ot…
将TAS 2A用于PP共混體系時，其制品缺口沖擊強度和彎曲強度性能優異，其潤滑性優于其它品種的潤滑劑。
After ultraviolet irradiating, the Young's modulus and tensile yield strength of HDPE are increased; its elongation at break and notched Izod impact strength are decreased.
紫外輻照後，HDPE的楊氏模量和拉伸屈服強度提高，但斷裂伸長率和缺口沖擊強度下降。
Many round voids which result in stress concentration easily are found on SEM micrographs of fracture surface after heat-treatment, so the notched izod impact strength of the sample decreases.
由熱處理後試樣沖擊斷面的SEM照片可見水分揮發留下的空洞，這些空洞容易形成應力集中點，因而導緻沖擊韌性降低。
The notched Izod impact strength of alloy increases with the increasing of EMG content in the condition of keeping other mechanical properties.
而隨着EM G含量的增加，材料的沖擊強度顯著提高，且其它的力學性能基本保持不變。
It has been found that the notched Izod impact strength of the blend first decreased slightly and then increased with the addition of UFPR.
研究發現，隨粉末橡膠用量增大，共混物的沖擊強度先有所降低然後逐漸上升。
The wollastonite encapsulated by polyethylene glycol (PEG) have been used to increase the notched-impact strength and to improve the low-temperature properties of polypropylene (PP).
聚丙烯（PP）低劣的沖擊和低溫性能影響了這類通用塑料的工程化和功能化。
The results show that the addition of mica can enhance the flexural strength, flexural modulus, notched Izod impact strength and heat deformation temperature of the composites;
結果表明：雲母可有效提高PP的彎曲強度及模量、懸臂梁缺口沖擊強度和耐熱性能；
The results showed that the impact strength(notched) of the composite was maximum and the mechanical and thermal properties were less decreased, when the dosage of modifier was 12 PHR.
當複合沖擊改性劑用量為12份時，材料的沖擊強度達到最大值，其它力學和熱性能降低不大。
The result showed that the tensile strength property and Vicat softening temperature was increased and notched impact property of PVC/ABS composite was decreased with the glass fiber added.
研究結果表明：隨着玻璃纖維添加份數的增加，PVC/ABS合金的拉伸性能和維卡軟化溫度有不同程度的提高，缺口沖擊強度有所下降。
Combining with production practice, process factors that effect HIPS resin notched impact strength are analyzed and effectivemeasures of improving notched impact strength are discussed.
結合生産實際，分析了影響HIPS樹脂沖擊強度的工藝因素，論述了提高缺口沖擊強度的有效措施。
The results showed that the using amount of PC had a great effect on the notched impact strength.
結果表明，對共混體系缺口沖擊強度影響較大的為體系中PC的含量。
The notched impact strength of the material was also increased with the in-creasing of laurolactam content.
與未改性澆鑄尼龍相比，改性澆鑄尼龍缺口沖擊強度隨十二内酰胺含量的增加而增加；
notched impact strength（缺口沖擊強度）是材料力學性能的關鍵指标，用于衡量含缺口試樣在高速沖擊載荷下抵抗斷裂的能力。它反映了材料在存在應力集中源（如裂紋、缺口）時吸收沖擊能量并阻止脆性斷裂的特性。
缺口（Notched）
試樣上預制的人工缺口（通常為V型或U型）會引發局部應力集中，模拟實際工程構件中的缺陷（如劃痕、孔洞）。這種設計能更嚴苛地評估材料對脆性斷裂的敏感性，尤其在低溫或高應變速率條件下。
沖擊（Impact）
測試通過擺錘或落錘對試樣施加瞬時高速載荷（應變速率可達10³~10⁴ s⁻¹），區别于靜态拉伸試驗。這種動态載荷更接近車輛碰撞、工具跌落等實際工況。
強度（Strength）
此處“強度”指材料吸收沖擊能量的能力，單位為焦耳/平方米（J/m²） 或千焦/平方米（kJ/m²）。測試中記錄的是試樣斷裂時吸收的總能量，即沖擊韌性值。
根據國際标準ASTM E23《金屬材料缺口棒沖擊試驗方法》，缺口沖擊強度定義為：“标準缺口試樣在沖擊載荷下斷裂所吸收的能量，表征材料在特定條件下抵抗脆性斷裂的能力”。類似标準還包括ISO 148-1《金屬材料夏比擺錘沖擊試驗》。
來源說明：
Notched Impact Strength（缺口沖擊強度）是材料力學性能測試中的一個專業術語，具體解釋如下：
缺口沖擊強度指材料在帶有預制缺口的試樣上抵抗沖擊斷裂的能力。缺口的存在會引發應力集中，模拟材料在實際應用中因結構缺陷或損傷導緻的脆弱性，從而更嚴格地評估材料的韌性。
主要用于塑料、高分子材料、金屬等領域，尤其在汽車、航空航天、包裝工業中評估材料在複雜應力環境下的可靠性。
如需更詳細的測試标準或具體材料數據，可參考材料力學手冊或ASTM/ISO相關标準文件。
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